Corrigendum: Four Weekly Ayahuasca Sessions Lead to Increases in “Acceptance” Capacities: A Comparison Study with a Standard 8-Week Mindfulness Training Program - Soler, Joaquim; Elices, Matilde; Dominguez-Clavé, Elisabeth; Pascual, Juan C.; Feilding, Amanda; Navarro-Gil, Mayte; Garcia-Campayo, Javier; Riba, Jordi (Frontiers in Pharmacology, 2021)